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Hi! I'm new on this forum. I want to install Yosemite with USB pendrive. When I try to boot it with "/amd64 GraphicsEnabler=No npci=0x3000" I have to boot with "GraphicsEnabler=No npci=0x3000" because I had "PCI configuration begin" message. In few seconds there's a crossed circle. I tried to boot it in verbose. The last line is "Still waiting for root device". I tried to fix it by placing GenericUSBXHCI.kext or Niresh's Still Waiting for Root Device Fix, but nothing changed. I have to boot with "GraphicsEnabler=No npci=0x3000" because I had "PCI configuration begin" message.

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Hello everyone,
I'm trying to install High Sierra (with AMD support) on my AMD 4500m Lenovo G505s laptop.
When booting from Clover in EFI with i get some really fast screen log then the pc reboots. Now, i know there isn't a way you could help me without some info/logs, unless i'm missing a major malfunction known on these kind of laptops, so, do you know a way i could prevent it from rebooting in order to at least understand what is causing this problem?
Do you think even trying to put OSX on this laptop is worth it?
Thank you.

I have Yosemite Zone working on Virtualbox fine. After downloading High Sierra Zone there is only a dmg and no ISO. I tried converting the dmg with hdiutil but it goes to 8GB and I get "no bootable media" in Virtualbox. Has anyone been able to do this yet?